There aren't any "tricks" from All in One SEO Pack. It follows the rules set by Google.
All we can do is suggest to Google what to use for the search engine results. Sometimes, Google will decide on its own to use other content from the search or page to populate the description or title in the results. If it does that, it's because Google has decided it knows better for that particular search. There's nothing that can currently be done about it. This isn't a problem with All in One SEO Pack.